Why is EmbeddedService returning EmbeddedHTML object?

For example, running the first example from the documentation EmbeddedService[{"YouTube", "mBpGUPCXQhk"}] returns this (displayed as FullForm) EmbeddedHTML["<iframe src=’https://www.youtube.com/embed/mBpGUPCXQhk?autohide=2&autoplay=0&cc_load_policy=0&color=red&controls=1&disablekb=0&enablejsapi=0&end=&fs=1&hl=&iv_load_policy=1&list=&listType=&loop=0&modestbranding=&origin=wolframcloud.com&playerapiid=&playlist=&&rel=1&showinfo=1&start=&theme=dark’ id=’ytplayer’ width=’560′ height=’315′ frameborder=’0′ allowfullscreen=’true’></iframe>\r\n",Rule[ImageSize,List[616.`,346.5`]]] Clicking the EmbeddedHTML object opens the browser…